US Bridges

27 Mile Road over I-94

Fair

Calhoun County, Michigan · 3.0 MI W of Jackson Col · Structure no. 000000000001284

Built
1960
65 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete Continuous
Length
360 ft
4 main spans
Daily traffic
900
1988 count
Owner
State
State Highway Agency

About this bridge

27 Mile Road over I-94 is a concrete continuous tee beam carrying 27 Mile Road over I-94 in Calhoun County, Michigan. It was built in 1960, so it is 65 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 900 vehicles a day, roughly 3% of them trucks, projected to reach 1,225 by 2000. The structure is 360 ft (109.7 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries27 Mile Road
CrossesI-94
Location3.0 MI W of Jackson Col
RouteCounty Highway 0
CountyCalhoun County
StateMichigan
Coordinates42.26761, -84.77604
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.8 US tons
Inventory rating46.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length360 ft (109.7 m)
Longest span113 ft (34.3 m)
Deck width33 ft (10.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (1988)
Projected traffic1,225 by 2000
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 27 Mile Road over I-94 built?

It was built in 1960, making it 65 years old in 2025.

What condition is 27 Mile Road over I-94 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does 27 Mile Road over I-94 carry?

About 900 vehicles per day (1988 count), of which roughly 3% are trucks.

How long is 27 Mile Road over I-94?

The structure is 360 ft (109.7 m) long with a longest span of 113 ft (34.3 m) and a deck 33 ft wide.

Who owns 27 Mile Road over I-94?

It is owned by the State Highway Agency.